One Inch C Format Videotape.

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Published 2015-01-13

All Comments (21)
  • @MC_AU
    This girl is a credit to her organisation..from the era when operators actually understood what the were doing - and why.
  • @FrankMyonk
    Thank you very much for this video! I've seen lots of B-format reels in the Bulgarian National TV back at the beginning of the 90's, always wanted to work with this huge fascinating video tape machines. :-) Now I have pro-programs at home and am only smiling with nostalgia. Still it is magnificent piece of technology. :-) And you are a great  teacher.
  • @video99couk
    Great stuff. I collect my first C format machine, a VPR2 in a few weeks. It's not been used in some years, so will certainly need some work. It's all going to be new and scary for me, it's not a format I'm familiar with.
  • @seano2101
    I remember doing dubbing commercials in on spot reels, I used to do about 15- 20 an hour (in between running the on VTRs recording incoming programs, etc)
  • @brentfisher902
    After 25 years of watching analog over the air TV stations that were weaker than the boiler on my first shower (which is a weak as American lager beer) and watching VHS tapes these video glitches are hard to notice. Yes there's room for improvement but most of my life I was doing the equivalent of watching TV with the wrong prescription eyeglasses wrapped with Saran wrap.
  • @xray111xxx
    Wow Great Video. I want one now. I have no application for this. I just love analog video, and audio tape. Nicely done, thanks for posting.
  • @Ampex196
    Thanks for sharing.  Happy Memories! That's Ray Moore, OOV at 10.00 (1 inch Dropout). 'One inch' was a 'walk in the park' compared to 2 inch Quad. Both formats are now consigned to history.
  • @bryanharris9034
    I used to be able to lace and line up for playout in about 30 secs. Vid level controls were generally done on the boards, not the front panel, and unless there were sub blacks, you should never adjust black level on programme material, likewise unless pek white is over 100% on prog material leave it alone. Line up is there for a purpose, if you start tweaking on prog , material then how on earth do you expect to match it if a retransfer for repair needs to be done. Plus, watching demod out is no good. The TBC will fill in small drop outs. Demod is only useful for line up adjustments, and for diagnosing problems if visible post TBC. Also why did the line up not start with a scratch test, then tracking??? Looks like a bit too much reliance on AST heads.Oh, and please zero the counter at the beginning when the tape is first loaded, and put a pip in to cue back to.
  • @YGroadcapitain
    ..and OOOH! how easy it become after U-matic.... this is beautifull video what really could go wrong, at the first place of recording a 1 program in 70`s and early 80´s, people dont get it at all... iMOVIE generation dont know where they coming from...
  • Re: The Capstan Servo Errors (where the tape speed drastically decreases at regular intervals) - I don't believe this is a particular fault of the tapes per se. I think this is due to a lack of oversight regarding what happens to these tapes over time, and should be relatively easy to prevent. Firstly, the edge of the tape containing the control track is clearly not being read properly, and there are two possible causes, which may be occuring singly or doubly. Firstly, the alignment/azimuth of the control track head may be out of spec. It can seem in spec with a line-up tone but that's when the tape tension is at one extreme in terms of the edge torque, because the take-up spool is pulling the tape at its hardest, meaning the angle at which the capstan is pulling each edge has a greater differential than it will as the take-up spool fills up. Secondly, the edge of the tape may be getting slightly stuck to the inside of the feed spool flange, meaning that the edge of the tape curls away from the horizontal plane. In both cases, this means the control track head doesn't read a coherent signal, but reads the wanted signal along with a pre- or post- image of the control signal slightly out-of-phase, meaning where it should be on the positive peak, a bleed-through component from the negative part of the phase is modulating onto it. For parts of the tape whose edge curves away slightly more than the rest, this can overcome the tach servo and TBC, causing the servo to slow down in the belief that's going to correct the phase, and it keeps going because it never corrects. Also there may well be a slight stickiness on the capstan itself. Two things that could be done, is to fit a guide (preferably with brushes) just before the head stack to flatten and clean the tape edge before it goes over, and another is to take the top flange off the feed spool, so that it feeds into the machine as an open pancake. This allows the tape edges to partially, naturally uncrinkle as it unwinds, and also to prevent any crinkling that might happen DURING playback.
  • @unlokia
    Maybe you could edit this video around 10:00 mins, and cause a COMPLETE audio AND video dropout, when Jimmy Saville is about to appear... ✌️"Whoops, lost him!"✌️
  • @brentfisher902
    You have a really good deinterlacer. This goes to show you that PAL stands for Paradise At Last while NTSC is Never The Same Color
  • @BenHelweg
    As a format, I must admit it looks very good. But damn I bet there's a hell of a lot of boring stuff that gets transferred.
  • @coffeehigh420
    and now the "digital vtr tape" is being transferred to a .AVI file on some hard drive at the BBC!  LOL
  • @blkpopeye
    Videotape broadcasting have come a long way, after the reel-to reel vtr's came professional 3?4 inch vide casstte recorder/players